Umi-hotaru

Umi-hotaru is a nickname of a rest area on the
Tokyo Bay Aqua-Line, an expressway.
It means "sea firefly".

Tokyo Bay Aqua-Line is the expressway connecting between Kawasaki city
in Kanagawa Prefecture and Kisarazu city in Chiba Prefecture, and it is
built across Tokyo Bay.
The length is 14.0 km. The the west side (Kawasaki side) is 9.6 km
undersea tunnel, and the east side (Kisarazu side) is 4.4 km bridge.
And there is "Umi-hotaru" rest area at the bridge-tunnel crossover
point.

It is one of the rest areas, and has restaurants, shops and amusement
facilities.
But the location is on an artificial island in Tokyo bay, then it has
good views.

How to get to here

By route
bus

Many route bus from Tokyo, Haneda
airport,
Kawasaki and Yokohama to some cities in south part of Chiba Prefecture
run this expressway and stop here.